Home / 21,458.84-29,607.64-12,954.24

Finding the Fourth Proportional to 21,458.84, 29,607.64 and 12,954.24

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Solution

The fourth proportional to 21,458.84, 29,607.64 and 12,954.24 is: 17,873.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,458.84 : 29,607.64 = 12,954.24 : x
  2. Step 2: Convert to fraction form
    21,458.84/29,607.64 = 12,954.24/x
  3. Step 3: Cross multiply
    21,458.84x = 29,607.64 × 12,954.24
  4. Step 4: Simplify right side
    21,458.84x = 383,544,474.39
  5. Step 5: Solve for x
    x = 383,544,474.39/21,458.84
  6. Step 6: Final answer
    x = 17,873.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.